Update for Express v5

Specifically, `express.json()` in Express v5 now uses `body-parser@2`,
which initializes `req.body` to `undefined` instead of `{}`.

People can also use either major version of `body-parser` with either
version of Express, so we should support both versions here.
Fortunately, we can maintain this helpful advice for people with
misconfigured apps by looking to see if the field exists at all.

Author: glasser

.changeset/config.json

@@ -2,7 +2,7 @@
   "$schema": "https://unpkg.com/@changesets/config@1.6.3/schema.json",
   "changelog": [
     "@changesets/changelog-github",
-    { "repo": "apollo-server-integrations/apollo-server-integration-express4" }
+    { "repo": "apollo-server-integrations/apollo-server-integration-express5" }
   ],
   "commit": false,
   "access": "public",

CHANGELOG.md

@@ -1,2 +1,11 @@
-# @as-integrations/express4
+# @as-integrations/express5
 
+## 0.0.0
+
+Initial release.
+
+Based on `@apollo/server/express4`, updated for Express v5.
+
+The check to see if you forgot to install the JSON body parser now works with
+`body-parser` v2 (and thus `express.json()` in Express v5) as well as with the
+older version.

README.md

@@ -1,21 +1,21 @@
-# Apollo Server Integration for Express v4
+# Apollo Server Integration for Express v5
 
 ## **Introduction**
 
-This package integrates Apollo Server v4 with version 4 of the Express web framework, by exporting a middleware that executes GraphQL operations.
+This package integrates Apollo Server v4 with version 5 of the Express web framework, by exporting a middleware that executes GraphQL operations.
 
-It is identical to the middleware exported at `@apollo/server/express4` from the core `@apollo/server` v4 package. It is being provided separately so that we can also provide an integration with Express v5 (`@as-integrations/express5`); future major versions of Apollo Server will not have built-in support for Express.
+It is identical to the middleware exported at `@apollo/server/express5` from the core `@apollo/server` v4 package, updated to support Express v5 instead of Express v4.
 
 ## **Requirements**
 
 - **[Node.js v20](https://nodejs.org/)** or later
-- **[Express v4](https://expressjs.com/)**; this package does *not* support Express v5
+- **[Express v5](https://expressjs.com/)**; see `@as-integrations/express4` for Express v4 support
 - **[Apollo Server v4](https://www.apollographql.com/docs/apollo-server/)**
 
 ## **Installation**
 
 ```bash
-npm install @apollo/server graphql express@4 @as-integrations/express4 cors
+npm install @apollo/server graphql express@5 @as-integrations/express5 cors
 ```
 
 ## **Usage**
@@ -24,7 +24,7 @@ Set up [Express](https://expressjs.com/) & [Apollo Server](https://www.apollogra
 
 ```typescript
 import { ApolloServer } from '@apollo/server';
-import { expressMiddleware } from '@as-integrations/express4';
+import { expressMiddleware } from '@as-integrations/express5';
 import { ApolloServerPluginDrainHttpServer } from '@apollo/server/plugin/drainHttpServer';
 import express from 'express';
 import http from 'http';